Patents by Inventor Hans Marchner

Hans Marchner has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and system for measuring a dose of drug inhaled
    Patent number: 5887586
    Abstract: In a method for measuring a dose of a drug inhaled by an animal, the momentary concentration of the drug in an aerosol supplied to the animal and the momentary inhalation flow rate of the animal are determined. An inhaled partial dose is calculated from each determined inhalation flow rate value and a corresponding concentration value. The calculated inhaled partial doses are added to obtain the total dose inhaled by the animal.
    Type: Grant
    Filed: September 15, 1995
    Date of Patent: March 30, 1999
    Assignee: Astra Aktiebolag
    Inventors: Magnus Dahlback, Per-Olof Fagerstrom, Hans Marchner, Ola Nerbrink